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Unit of Measure

Specifications

Engineering Group

 N/A Mounted Bearing

Bearing Number

 N/A 22218

Shaft Size

 N/A 3 3/16 in

Shaft Size Type

 N/A Imperial

Full Timken Part Number

 N/A QMPR18J303SB QMPR18J303SC QMPR18J303SEB QMPR18J303SEC QMPR18J303SEM QMPR18J303SEN QMPR18J303SEO QMPR18J303SET QMPR18J303SM QMPR18J303SN QMPR18J303SO QMPR18J303ST

Locking Style

 N/A Eccentric

Housing Construction

 N/A Four-Bolt Pillow Block

UPC Code

 N/A 0883450090520 0883450090537 0883450090551 0883450090568 0883450090575 0883450090582 0883450090599 0883450090605 0883450157216 0883450157414 0883450251532 0883450251709

Dimensions

Dimension A

 N/A 3.75 in

Dimension B

 N/A 7.69 in

Dimension C

 N/A 4.76 in

Dimension D Min

 N/A 9.25 in

Dimension D Max

 N/A 11.25 in

Dimension E

 N/A 2.38 in

Dimension F

 N/A 13.63 in

Dimension G

 N/A 3.75 in

Dimension H

 N/A 1.56 in

Dimension J (Bolt Size)

 N/A 0.75 in

Dimension K

 N/A 1.44 in

Dimension L

 N/A 4.46 in

Dimension M

 N/A 2.59 in

Dimension R

 N/A 0.32 in

Dimension S

 N/A 4.03 in

Radial and Thrust Factors

C0 - Static Load

 N/A 87200 lbf388000 N

C - Dynamic Load (Basic)

 N/A 79700 lbf355000 N

e - Geometry Factor

 N/A 0.23

Y1 - Geometry Factor

 N/A 2.90

Y2 - Geometry Factor

 N/A 4.31

Engineering Seal Speed

Oil Lubrication - M/N Seal

 N/A 1400 rpm

Oil Lubrication - T Seal

 N/A 2400 rpm

Oil Lubrication - B/C/O Seal

 N/A 1000 rpm

Grease Lubrication - M/N Seal

 N/A 1400 rpm

Grease Lubrication - T Seal

 N/A 2000 rpm

Grease Lubrication - B/C/O Seal

 N/A 1000 rpm

Engineering Bearing Attributes

Float

 N/A 0.083 in

Shaft Tolerance

 N/A 0.0030 in

Engineering Internal Radial Clearance

Eng Internal Radial Clearance - Min

 N/A 0.0024

Eng Internal Radial Clearance - Max

 N/A 0.0039

Pre Install Clearance Min

 N/A 0.0024 in

Pre Install Clearance Max

 N/A 0.0039 in